Question.............. how many aircraft have been overtpowered by guests on the jump-seat as opposed to people forcing entry or terrorising pax ?? Hmmmmmmmmm.!!
Well, there was the axe wielding lunatic aboard the FedEx freighter a few years ago.....
Still, I'm convinced I could trust my father on the jumpseat. He's had plenty of opportunities to kill me over the past thirty years and not exercised them, so he's probably a safe bet.